Anyone using this feature? I was running ads on it with a CPM based bid and it was running awesome 1.1% ctr and almost 2% conversions, which is really good for my niche. Then I tried paying per click on placement. One site that was my bread and butter basically died so I put it back on CPM and it basically is officially dead now. .25 ctr and 0 conversion rate...wtf? Any ideas, or experiences that could shed some light on what the hells happening?